The Algo 8196 SIP PoE+ Paging Speaker and IP Loud Ringer can operate individually or can support up to three daisy-chained Algo 1196 Satellite Speakers for cluster and multi-speaker installation (see images). Daisy-chain requires directly wiring speakers to each other (not through network). The Algo 8196 features 50 SIP paging extensions plus 10 Alerting/Ring extensions with multicast scalability for voice paging, music and audio broadcasts, and notification capability. The Algo 8196 requires the installer to connect the unit to PoE+ power for full capability. Extensions can be registered with most any premise or hosted Communication Server supporting 3rd party SIP endpoints independent of a telephone (no IP telephone is required). Multicast Support allows for use with multiple device to device receive or broadcast. Wideband G.722 codec support provides optimum speech clarity and intelligibility in an HD Voice environment. Voice paging and notification announcements are easier to understand, particularly in noisy environments. Emergency alerts feature by extension. For additional functionality, consider adding the Algo 1202 or Algo 1203 illuminated call button to your order. The recommended installer should be familiar with configuration and programming of Voice over IP devices via web-based graphical user interface or provisioning. Can be wall or ceiling mounted or for outdoor installation, the mounting plate must be connected to a 2-Gang Electrical Box (not included) using the supplied gasket for weatherproof installation. While this product will operate at low power on a standard PoE network, it requires PoE+ IEEE (802.3af/at) 48V for full functionality and power output. If PoE+ is not available, use PoE+ Injector. Does not support direct power connection - PoE Only. See manufacturer's website for specifications, new features, and required firmware updates. A basic understanding of computer networking and Voice over IP experience is recommended.